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d4239-1headline bar  Three scientists looking at an image of a wormlike nematode on a computer screen**Image Number D4239-1** At the Electron and Confocal Microscopy Unit, in Beltsville, MD, from left to right, plant pathologist Lynn Carta, lab director Gary Bauchan, and support scientist Joe Mowery use a low-temperature scanning electron microscope to observe a nematode, *Litylenchus crenatae*, that is damaging beech trees. Photo by Stephen Ausmus.  640 pixels wide: (D4239-1 .jpg)   Please visit our Image Gallery.


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